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Adaptive Radio Resource Allocation Framework for Multi-User OFDM

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2 Author(s)
Rodrigues, E.B. ; Dept. of Signal Theor. & Commun. (TSC), Tech. Univ. of Catalonia (UPC), Barcelona ; Casadevall, F.

Spectral efficiency, fairness and user satisfaction are crucial aspects for resource allocation in multi-user Orthogonal Frequency Division Multiplexing (OFDM)-based cellular networks. Classical Radio Resource Allocation (RRA) strategies, such as Max-Rate (MR), Proportional Fairness (PF) and Max- Min Fairness (MMF), show different performances regarding the three aforementioned aspects. In this work, we present an adaptive RRA framework that joins the criteria of the three classical strategies in a unified manner and can be dynamically configured according to the cellular operator's objectives. We exemplify the flexible use of this general framework by proposing two adaptive RRA algorithms that provide strict fairness among users and maximizes the users' satisfaction, respectively. Simulation results show that the two proposed algorithms can efficiently achieve their respective objectives by means of the adaptation of the general RRA framework. I.

Published in:

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Date of Conference:

26-29 April 2009